<p>Hello Admin:</p>

    <h4>The server machine cpu usage rate is <span style="color: red">{{ cpu_rate }}</span>, and the memory usage rate is <span style="color: red">{{ mem_rate }}</span>!!!
        Maybe you need login in the backend manage page, or use the SSH to connect the server machine to check what happened!!!</h4>
                                                                                <p>Server monitor.</p>